Device for withdrawing blood from the body.



. BROWN.

DEVICE FOB. WITHDRAWING BLOOD FROM THE BODY.

APPLICATION FILED MAY 28,1912.

5 IW@ WI'OZ ma MEW QH@ 1121 weer To all 'whom it moyconccm itknownthatLPHILIP V. BROWN, a citia'en of. the United States, residing at New.York, Ain themeunty of NewYork and State of New `York, have invented newand useful-improvements in Devices for With drawing v:Blood from theBody, of which the following is a specification. v

My invention relates to the; withdrawal of samples of blood from thebody for tests and consists .ina simple device whereby this may be doneconveniently and the sample then conveniently transportedif necessary,an indeiinitedistance to the laboratory.

.lhe essentialy features of thedevice are a closed .glass tube orreceptacle of any convenient shape, within which a vacuum has beenproduced, a hypodermic needle and a iuitable tubular connectinggg1means, preferv 'f-lcnible, between lthe yreceptacles, and

must be provided wherenicr den be means and the interior .be after theneedle has been rai i., herewith ll have illuse and desirable :form ofdevice ny invention. n hipires i and 2 are longitudinal sectionsrespectively before and after said communication has been established.Fig. 3 shows a slightly modilied form of receptacle.

the 'rigores l indicates the ,glass recepen bod tacle iior the blood,which may be merely a test-tube as indicated. A vacuum is created inthis receptacle by any usual means and then closed either by sealing theend at Qas shown in Fig. 3 or by inserting an airtight rubber cork 3provided with the short glass tube or tip 4, whose end 5 is sealed in agas llame after the vacuum has been established. This end should beslightly elongated so that it may be broken to make connection betweenthe vein and the receptacle after the needle has been inserted, asindicated in Fig. 2, whereby the blood is drawn from the body into thereceptacle.

6 is the connecting means, preferably a rubber tube fitted over theclosed end of the top 4, as shown in the figures and carryingr in itsother end the needle 7.

When the sample has been drawn into the receptacle, the rubber tube maybe closed air tight byl means of a suitable clamp 8, but l much preferto seal the tip at about 's m v. shown, on

"i aten. Patenten aan.' ia, este. application' inea mayas, 1912.eel-1am. mazda'.

test. Heretofore blood tests have been in'- convenient and dicultforithas been necessary to bring `the patient to the laboratory Where theexpert could take the blood sample.

ln Fig. l is indicated at 10 ammonium oxyflate for preventingcoagulation, where that is necessary, .or some suitable culture mediummay be deposited in lglass tube, but generally speaking the latter isnot done for the Vcnltnre is: mad-e fat the liaibcratori?.j.`E pieterthe form of tube shown in l and 2, closed by a rubber coi-lr, for thismay f dy the old method there be cleaned easily. was danger cicontamination; the blood was withdrawn by a syringe and was deposited inthe various media at the bedside.l All of which was complicated andinconvenient, often frightening' the patient andthose implements werediiicult to manipulate and to transport. nly a pathologist couldpractise those old methods; evidently they were almost impossible forthe country physician, whereas with my device the blood can easily beWithdrawn by any physician. This device is always ready .and convenientand may be used, not only for blood tests, but to draw liquids from anypart of the body.

Having?,l described my invention, l claim:

1. A simple, compact device for extracting blood from the body,comprising a small receptacle having a vacuum produced therein andprovided with a single opening, a

plug fitted thereto and having' also a single Sti dbb

a receptacle having a vacuum produced therein and provided with la glassneck adapted for the attachment of a connection from a hypodermicneedle, said neck having an elongated weakened seal portion to beinclosed within the connection and adapted to be broken therein withoutexterior exposure.l

3. A simple, portable device for extracting blood from the body andtemporarily retaining the blood, comprising a small, glass receptaclehaving a single opening only, the same being the mouth of thereceptacle, a plug fitted to said opening, `said plug having a singleperforation only eX- tending therethrough and adapted to connect theinterior of the receptacle with the Iexterior, a hypodermic needle, atubular connection between the needle and the perforation forming acontinuous channel from the needle to the interior of the receptacle,means initially to close said channel, and' then permitting the same tobe opened whenv the needle hasbeen inserted, and means to close the samewhen the blood has been withdrawn.

4. A device of the character described consistlng of a receptacle havinga vacuum produced therein, said receptacle having a single open end, astopper fitted to said end, a single glass inlet tube carried by thestopper, a fused seal portion for said tube, a hypodermic needle and aflexible connection therefrom to the tube arranged to inclose .the fusedseal portion to permit breaking of the seal therein without exteriorexposure. v c

5. A device ofthe character described consisting of a receptacle havinga vacuum produced therein, said receptacle having an open end, a stopperfitted to said end, a glass inlet tube extended through said stopper, afused seal portion for said tube, a

PHILIP V. BROWN. Witnesses R. W. SPECHT, O'rro M. GABLER.

